Composite metal material and method of producing the same, caliper body, bracket, disk rotor, drum, and knuckle

摘要

A composite metal material includes a carbon-based material in a matrix of a metal-based material. The carbon-based material has a first bonding structure in which an element X bonds to a carbon atom on a surface of a carbon material. The matrix includes an amorphous peripheral phase containing aluminum, nitrogen, and oxygearound the carbon-based material. The element X includes at least one element selected from boron, nitrogen, oxygen, and phosphorus.